The mean lag time between sensor and YSI reference values was 4.5±4.8 min. The overall mean absolute relative difference was 11.4%. The percentage of readings within Consensus Error Grid Zone A on Days 2, 7, and 14 was 88.4%, 89.2%, and 85.2%, respectively.
Results: The accuracy of the results was demonstrated against capillary BG reference values, with 86.7% of sensor results within Consensus Error Grid Zone A. Sensor readings were masked to the participants. Sensor glucose measurements were compared with capillary blood glucose (BG) results (approximately eight per day) obtained using the BG meter built into the reader (BG reference) and with the YSI analyzer (Yellow Springs Instrument, Yellow Springs, OH) reference tests at three clinic visits (32 samples per visit). Three factory-only calibrated sensor lots were used in the study. A sensor was inserted on the back of each upper arm for up to 14 days.
Materials and Methods: Seventy-two study participants with type 1 or type 2 diabetes were enrolled by four U.S. Reminders: Change or setup reminders on the Reader, such as «Check Glucose», «Take Insulin» or create your own custom reminders.Introduction: The purpose of the study was to evaluate the performance and usability of the FreeStyle ® Libre™ Flash glucose monitoring system (Abbott Diabetes Care, Alameda, CA) for interstitial glucose results compared with capillary blood glucose results. Notes: Add notes to glucose readings and strip results on the Reader such as «Exercise,» or «Food» or create your own custom notes. The name and ID will be saved to the Reader but will not be visible on the Reader itself. Reader Profile: Change the name/and or ID that will be printed on the reports. Note: On the Reader, the Target Glucose Range is displayed on glucose graphs and used to calculate your Time in Target. The Target Glucose Range can be set within 70 to 180 mg/dL. Work with your health care professional to determine your Target Glucose Range. (This option is only available on Readers with multiple languages.) Target Glucose Range: Set the target glucose range for the Reader. Language: Change the language on the Reader. Sounds and Vibrations: Change the volume of the Reader’s notification tones and turn on or off notification tones, notification vibrations, and touch tones. These values affect the Reader data and settings. You can also change the Clock Style to either 12-hour or 24-hour.ĬAUTION: It is very important to set the time and date correctly. Yes, you can use the software to setup or change the following features on your Reader: Time and Date: Change the Reader time and date to match the Computer time and date. Reminders: Change or setup reminders on the Reader, such as «Check Glucose», «Take Insulin» or create your own custom reminders. CAUTION: It is very important to set the time and date correctly. You can also change the Clock Style to either 12-hour or 24-hour.
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